Calculating-machine.



PATENTED SEPT. 1, 1908.

R. REIN. GALGULATING MACHINE.

APPLIOATION FILED 00T.23, 1906.

a sHEETsQsHBBT 1.

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' wir No. 897,659. PATENTBD SEPT, 1, 190s.

` R. REIN;

. CALCULATING MACHINE.

APPLICATION FILED 0OT.23, 1906.

3 SHEETS-SHEET 2.

No. 897,659. PATENTED SEPT. 1, 1909. E. REIN.

GAEGUEATING MACHINE. APPLICATION FI-LED 00T.23, 1906.

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l To all whom it may concern:

- iiNrTEn sTATEs PATENT ormoni.

ROBERT REIN, or sciiLAonTENsEE, NEAR BERLINGERMANY,'AssiGNoR BY MEsNE AssiGN- MENTS, To LUDWIG sPiTZ a OO., G. M. B. n., OEBERLIN, GERMANY, A CORPORATION.

OALCUL'ATNG-MACHNE Speccaon of lliettersPatent.y

`isatentai sept. i, isos.

Application filed October 23, 1906. Serial No. 340,208. I

Be it known that I, ROBERT REIN', engineer, a citizen of the Kingdom ofPru'ssia, Germany, and residing at 3 Kurstrasse,

Schlachtensee, near Berlin, Germany, have invented new and useful lm rovements in Calculating-'Machines of the 'l omas Type, of which the following is a speciiication.

' -Fig 5 is a vertical section through Fig. 4.v

The` present invention refers to certain improvements in calculating machines of the type shown in Thomas de Colmars British patent No. 13504 of 1351, and has for its ob.-

Aject to permit the results of two calculations to become visible at the saine time, whereas in machines of the type above referred to onl one calculation could be read at a time,

an to improve certaindetails of construetion in machines of this type. a l A V The calculating machine embodying the present invention is exem lined in the acF companying drawings in w ich;

Figure 1 .is a part plan of the calculating machine. Fig. 2 is a side view. Fig. 3 is a vertical section through the calculating niachine. Fig. 4l illustrates the connection of the two index plates seen from above.

Fig. 6 is a detailed view of the locking gear.

fis shown,- the feed drums 28 having nine graduated teeth 42 are arranged in the same manner as in the calculating machine shown l in thg patent above referred to, and are driven by means of bevel gears 39, 39 and the shaft'41 by the crank handle 40 arranged prismatic section where they carry the vaoverthe setting plate 36. The feed drums 28 are carried by shafts 1, which are made of rious parts on them, `but are-otherwise of a round section and turn in bearings in the vertical plates 1 1 and .14. in the same manner the shafts 2 are of roundsection and of prismatic section only at such portions where they carry the adjustable gear-wheel 29 adapted to mesh with the drum 28. The re* maining portions of the shafts 2` are'round and carry the loosely revolving sleeves 5, 5 'and the loose, rotary and adjustable bevel gears 12, 12 for the reversin gear.

The sleeves 5, .5 on whic are fitted the star shaped ratchet disks 4`and the tens-feed wheels 6, have each at one'endone or several lugs or projections 23 engaging notches 24 in the hubs of the bevel gears12. The bevel gears 12 are thereby carried round when the sleeves 5 are rotated, but for reversing they can be moved .axially out of the way. Each of the pairs of bevel gears 12 forms with each lthird bevel gear 25 on the spindle of the figure disks 21 the reversing gear for the counters. For simultaneously reversing all reversing gears either for addition and multiplication or for subtraction and division, the reversing lever 49 (Fig. 3) is hinged by means of connecting links 47, 48, to the two bars 13 extending across the whole width of the machines and fitted exactly between the hubs of each pair of bevel gears 12. @n the bars 13 being moved, the bevel gears 12 will also be axially adjusted on the shafts 2, so that one or the other one of the bevel gears 12 engages with the third bevel gear 25 and accordingly produces a rotary movement of the dials 21 connected with the bevel gears 25 to the right or left respectively..v y

The dials 21 'for the product figures are arranged according to the present invention in two parallel rows on two index plates 15, 16, each row of dials being fitted to a separate index plate. The index late lnearest to in the Oalcu ating machine of the'ty e above referred to; i. e., with one' row ofl Vials and corresponding windows 18 for the one product counter anda secondl row. of dials with windows 20 for the' so-calledquotient counter. The second .index plate15 however has only one row of dials,21and\-th'e necessary row of windows 1 9 for the second product counter. The under sides of the index plates 15, 16, are provided with lugs 22, 22, to allow of their being moved on rods 17 17.

The two index plates 15 and 16 can be quickly coupled together and separated, ac-y cordingly as both or only one of the index plates is to be used in the calculation. The arrangement for coupling the index plates consists of a lever 50 provided with a handle 57, said lever being hinged at one end to the v.hook 51 revoluble around the pin 51a, said hook 51 (when the lever 5() is in la position parallel with the plate)` engaging with its ooked. end behind a pin or projection 53 in 110 index plate 16, and being movable from one i a recess 52 and being held in such position by a spring 55 pressing against the other end 54 of the hook,l a pin 56 being desirably arranged between the spring and the hook. rlhe lever 50 has, underneath, a lu'g 61 which exactly fits in a corresponding notch 60 in the index plate 16. If only one index plate is to be used in calculation, the coupling of the two index plates is disconnected by disengaging the hook by pressing a linger against the end 5.4 and raising up the lever 50 by the handle 57 ,'as shown by the dotted lines in Fig. 5. In such raised position the lever 5@ is turned around a right angle to the right and. thereupon lowered again, until the hook 51 catches, behind the pin 64 in a recess 63, the lug 61 en the lower side of the lever entering a recess62. In both instances if one or both plates is to be used for calculation,'the handle 57 of the coupling lever 50 always serves to raise or lower it with one hand or to move the index plates, while the other hand holds the crank-handle.

By disconnecting the coupling of the two index plates, the index plate 15 is put out of gear and calculations may be made with the late 16 alone, as is the case with the calcuating machine of the type above referred to.

As there are two counters in the present calculating machine, in which the single tens can be o erated at different times, on each of the rate et disks 4 (Fig. 6) a pawl 65 is provided, which is held by a spring 66 in engagement with a ten-toothed ratchet-wheel 3 on the shaft 2. On the shafts 2 turning to the right, the above described ratchet gears will cause theitwo ratchet disks 4 on each ofl shafts 2v and their sleeves 5 to be turned, which will thereby operate the airs of gears l2 of the reversing gears. W len a ten is moved in either of the two productnounters, the corresponding tens-finger 8, moved in known manner by means of a tens-feed lever 67 into the range of its tens-feed wheel 6, can advance the tens-feed wheel by one"tooth without turning the shaft 2, the second tensfeed wheel 6 of the other counter, arranged on the same shaft 2, remaining stationary if no ten is to be moved. When the respective tens-iinger 8 has advanced the tens-feed wheel 6 by one tooth, the tens-finger 8 will, owing to the action of the helical cam 9, be

again moved from the range of the respective'V tens-feed wheel back into its original posi-4 tion, until a new ten is to be advanced.'

As in the present calculating machine there are two rows of windows for the product numerals and-one row of smaller windows for the quotient numerals in /the res )ective index For this purpose'each settings ot45 of the setting plate 36 1sl connected by means of a cross-pin 37 with an endless thin metal/'band 43 (Figs. 1 and 3) which runs over rolls 44 and carries the numerals from 0 to 9 on the upper surface facing the setting plate.

Over each band a window 47 is provided in the setting plate, said windows 47 being arranged in one row, so that the numerals can ,be conveniently and plainly read through the said row of windows. .ln Fig. 1 the setting up of the numerals 356() is illustrated, said numerals being read through the windows 47. When all setting slides are set at zero a zero appears behind each of the windows 47.

The setting slides 38 engage with an arm 30 in the 'hub of each one-feedgear wheel 29 so that on the setting slides being adjusted, the said feed gears will be also adjusted on the prismatic portions of the shafts 2 and be made to engage with the teeth 42 of the drums 28.

Each setting slide 38 (Fig. 2) is provided with a spring or an elastic plate 33, which has at'its end small rollers 34, which are forced into triangular shaped notches 35 on the under side of the plate 36 arranged in two rows parallel to the slots 45. The pitch of the teeth corresponds with the pitch in which the single figures are marked on the top of the setting plate. On adjusting the setting slides 38 the rollers 34 catch into the respective notches 35, the rollers already commencing to catch, assoon as they have passed the highest point between two notches. In this way it is practically impossible for the setting slides to take up any osition other than with their rollers 34 exact y centrally 'disposed in the notches engaged thereby.I

For reducing thefriction caused by moving the slides, each of the setting slides 38 may be provided at its upper portion with small rollers 32 or balls, which slide on both sides of the slot 45 on the top surface of the setting plate- 36, so that the setting slide may be seized by the knobs 31 and easily adjusted.

The operation and action of the calculating machine according to the present invention is as follows z-As 'examples I shall carry out the following calculation with simultaneously multiplication and addition:

35ee 1e 364 14896 32 X.

lFirstly by means of the setting slides 38 the iirst factor 3560 is set up on the setting plate.

i merals 90632.

somete product remain. T en the two index plates are restored to their original position and the factor'364 set up on the setting late. Afterwards l multiply with 14, W ereu onthe product 5096 of the multiplication ecomes visible in the product'counter of the index plate 16 and in the product counter of the plate 15 the total 62056 obtained by addition of the former and the last obtained product is read. Now the calculation is contlnued in the above described manner, by setting the numerals of the plate 16 againto zero and turning down the index ates whereupon the factor 893 of the third) multiplication 1s set up on the setting plate and multiplied with 32. Then in the index plate 16'w1ll be seen as the roduct of the last multiplication the numera s 28576 and in the plate 15 as the total of all single products 'obtained the nu- It is thereby made possible to read and note down the products of the separate multiplications.

f f the index plate 16 alone is to be used for calculation, the coupling of the two index lates is disconnected by disengaging the ever and the plate 15 is moved out of-r gear by turning it up, in which position it may'bedheld by a catch or hook until again re uire laving now described my invention what l claim and desire to secure by Letters Eatent of the United States is 1. ln a machine of the character described, the combination with a pair ofv index plates, one of said index plates provided with a row of windows for indicating productsand the other of said plates provided with two rows of windows for indicating both products and quotients, of means for coupling said index .i

plates, saidmeans including a lever pivoted to one of said plates, and a catchcarried by said lever and adapted to engage the other of said plates.

2. In a machine of the character described,

y the combination with a pair of index plates,

one of said index plates provided with a row of windows for indicating products and the other of said plates provided with two rows .of windows for indicating both products and quotients, of means for coupling said index plates, (said means including a .lever ivoted to one of saidplates, a catch carried y said lever and adapted to engage the other of said plates, anda pluralityof shafts each having a prismatic portion, a feed-wheel ad'ustably mounted on the prismatic portion o each of said shafts, sleeves rotatably mounted on i said shaft, and a feed-wheel and ratchet-disk rigidly mounted on each of said sleeves.

3. ln a machine of the character described,-

the combination with a pair of' index plates, one of said index plates provided with arow of windows for indicating products and the other of said plates provided with two rows of windows for indicating both products and quotients, of means for coupling said index plates, said means including a lever ivoted to one of said plates, a catch carried pby said lever and adapted to engage the other of said plates, and a plurality of shafts each having .a prismatic portion, a feed wheel adjustably mounted on the prismatic portion of each of said shafts, a disk loosely carried by each of said shafts, and means for o eratively connecting each of said disks wit the.

corresponding shaft, said means comprising a paw and ratchet. f

4. 1n a machine of the character described, the combination with a pair of index plates, one'of said index plates provided with a row ofv windows for indicating products and the other of said plates provided with two rows of windows for indicating both products and quotientsyof means for-coupling said index plates, said means includin a lever ivoted to one of said plates, a catc carried y said lever and adapted to engage the other of said plates, and reversing mechanism comprising a shaft, gears slidably mounted on sai shaft, two parallel bars, one arranged adjacent each of said gears, a lever, and links connecting said lever and bars.

5. ln a machine of the character described, the combination with a setting plate provided with a slot and'a series of triangular shaped notches adjacent said slot, of a set- -ting slide'movable in said slot, an elastic plate carried by said slide, a .pair of rollers carried by said elastic plate and adapted to enter said notches, and rollers carried y said Vsettin slide and adapted l'to run on said setting p ate'on the sidev opposite said notches.

6. ln a machine of the character described, the combination with a setting late provided with a islet, ra series of note es and a window, and a setting slide movable in said slot, of an endless band connected to said slide and rovided with numerals adapted to be broug t successively o posite sald Window as said slide is move an elastic plate carried by said slide, a pair of rollers carried by said elastic plate and adapted to enter saidnotches, and rollers carried by said setting slide and adapted 'to run on said setting plate on the side op'ppsite said notches.

Signed by meat erlin this 19th day of September 1906. I

. ROBERT REIN. Witnesses: v y

WOLDEMAR HAUPT,

HENRY HAsPER. 

